Computer Associates BrightStor ARCserve Backup Discovery Service vulnerable to buffer overflow

Overview

The Computer Associates BrightStor ARCserve Backup Discovery Service contains a buffer overflow, which may allow a remote attacker to execute arbitrary code.

Description

Computer Associates BrightStor ARCserve Backup is a cross-platform backup and recovery application. The ARCserve Backup Discovery Service fails to properly check incoming network traffic on 41524/udp, creating a buffer overflow vulnerability.

Exploit code for this vulnerability is publicly available.

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Impact

A remote, unauthenticated attacker may be able to execute arbitrary code on a system running the vulnerable software.

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Solution

Upgrade or patch
Upgrade or install patches, as recommended by the Computer Associates vulnerability 32056 description.

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Restrict access

You may wish to block access to the vulnerable software from outside your network perimeter, specifically by blocking access to the ports used by the Discovery Service (typically 41524/udp). This will limit your exposure to attacks. However, blocking at the network perimeter would still allow attackers within the perimeter of your network to exploit the vulnerability. The use of host-based firewalls in addition to network-based firewalls can help restrict access to specific hosts within the network. It is important to understand your network’s configuration and service requirements before deciding what changes are appropriate.

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Vendor Information

864801

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Computer Associates __ Affected

Notified: August 04, 2005 Updated: August 04, 2005

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Please see the Computer Associates vulnerability 32056 description.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23864801 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?ID=32056&gt;
• <http://secunia.com/advisories/14183&gt;
• <http://xforce.iss.net/xforce/xfdb/19251&gt;
• <http://www.osvdb.org/displayvuln.php?osvdb_id=13613&gt;

Acknowledgements

This vulnerability was reported by iDEFENSE, who in turn credits Patrik Karlsson and an anonymous source.

This document was written by Will Dormann.

Other Information

CVE IDs:	CVE-2005-0260
Severity Metric:	39.38 Date Public: